Refa: Move boolalg to separate folder

[carlos-adir]

As described by #88 , the algebraic boolean algebra can be moved to its own submodule

[codecov]

Codecov Report

❌ Patch coverage is 99.68944% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 99.30%. Comparing base (04bb61c) to head (38899e7).
⚠️ Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
src/shapepy/boolalg/converter.py	98.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #90      +/-   ##
==========================================
- Coverage   99.34%   99.30%   -0.04%     
==========================================
  Files          40       42       +2     
  Lines        3665     3619      -46     
==========================================
- Hits         3641     3594      -47     
- Misses         24       25       +1     

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